The patient had a host of other conditions that put their mortality risk already extraordinarily high, which is likely why this experiment treatment got approve

The patient had a host of other conditions that put their mortality risk already extraordinarily high, which is likely why this experiment treatment got approved in the first place. Kidney function might now be fine but it could have just have easily been one of the other comorbidities that did them in. I am sure they are doing more research on this.